PGMs move their control surfaces using which of the following systems?

Precision-guided munitions (PGMs) utilize advanced control systems to maneuver and adjust their flight paths effectively. Among these systems, hydraulic and electro-servo actuators are widely used due to their ability to provide precise and responsive control over the control surfaces of the munitions.

Hydraulic actuators employ the force of pressurized fluid to create movement, which allows for quick and powerful adjustments to the control surfaces. This capability is particularly beneficial in the high-speed environment of munitions, where rapid response to changing conditions is critical for maintaining accuracy.

On the other hand, electro-servo actuators combine electrical components with servo mechanisms to achieve precise position feedback and control. These actuators are known for their high accuracy and reliability, which are essential in ensuring that the guidance systems of PGMs function correctly.

Together, hydraulic and electro-servo actuators provide the necessary control and responsiveness required for effective guidance in varying flight conditions, ensuring that PGMs can successfully reach their intended targets.